A sublease is a legal arrangement in which the original tenant of a property — who holds a lease agreement with the landlord — rents out part or all of that leased property to a third party, known as the subtenant or sublessee, for a period within the term of the original lease. In a sublease, the original tenant (now the sublessor) remains fully liable to the landlord under the primary lease agreement, including for rent payments and property conditions, regardless of the subtenant's conduct. Subleasing requires the landlord's prior consent in most jurisdictions, including under Indian property law. In commercial real estate, subleasing is common when businesses downsize, relocate, or restructure and wish to monetise unused office or warehouse space. For investors on Ventura Securities tracking real estate companies, REITs, and commercial property developers, sublease activity in the office and industrial segments is an important indicator of tenant demand health, vacancy rate trends, and the underlying strength of rental income streams supporting property valuations.